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To Speed Vaccination, Some Call for Delaying Second Shots
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To speed vaccination, some call for delaying second shots
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To Speed Vaccination, Some Call for Delaying Second Shots
Stretching the time between the first and second doses would greatly accelerate the rate at which people get at least partial protection. But some experts fear it could also lead to new variants.
People without appointments waited outside a mass Covid vaccination site in Hagerstown, Md., this week.Credit.Chip Somodevilla/Getty Images
April 9, 2021Updated 6:16 p.m. ET
The prospect of a fourth wave of the coronavirus, with new cases climbing sharply in the Upper Midwest, has reignited a debate among vaccine experts over how long to wait between the first and second doses. Extending that period would swiftly increase the number of people with the partial protection of a single shot, but some experts fear it could also give rise to dangerous new variants.
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How Childhood Infections Could Shape Pandemics
A child’s first influenza infection shapes their immunity to future airborne flu viruses including emerging pandemic strains. But not all flu strains spur the same initial immune defense, according to new findings published today by University of Pittsburgh School of Medicine virologists in the journal PLOS Pathogens.
“These results are relevant right now to the COVID-19 pandemic,” said senior author Seema Lakdawala, Ph.D., assistant professor of microbiology and molecular genetics at Pitt. “They may explain age-based distributions of SARS-CoV-2 disease severity and susceptibility.
“Having flu once does not make you immune to all future influenza viruses,” she said. “Nor does having had the original SARS virus in 2003 or any of the ‘common cold’ coronaviruses in circulation necessarily mean you can’t get infected with SARS-CoV-2. But your susceptibility to infection might be different than someone who ha
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PITTSBURGH, Feb. 18, 2021 - A child s first influenza infection shapes their immunity to future airborne flu viruses including emerging pandemic strains. But not all flu strains spur the same initial immune defense, according to new findings published today by University of Pittsburgh School of Medicine virologists in the journal
PLOS Pathogens. These results are relevant right now to the COVID-19 pandemic, said senior author Seema Lakdawala, Ph.D., assistant professor of microbiology and molecular genetics at Pitt. They may explain age-based distributions of SARS-CoV-2 disease severity and susceptibility. Having flu once does not make you immune to all future influenza viruses, she said. Nor does having had the original SARS virus in 2003 or any of the common cold coronaviruses in circulation necessarily mean you can t get infected with SARS-CoV-2. But your susceptibility to infection might be different than someone who has never encountered a co
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